Hello all!! New here with a fresh Ubuntu touch install on a Pixel 3A XL. I had 2 weeks of Tello service left so I tossed a sim in and I can confirm text and data are working so far. My service does not including voice atm so I cant try that. Looking forward to testing this OS out!! Cheers o/

Ok mark this as closed please. Seems the numbers might be touchy or I wasn't doing something corcorrectly. Here this shows the PW worked.
Thanks everyone!!
phablet@ubuntu-phablet:~$ sudo -l
[sudo] password for phablet:
Matching Defaults entries for phablet on
ubuntu-phablet:
env_reset, mail_badpass,
secure_path=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin

User phablet may run the following
commands on ubuntu-phablet:
(ALL : ALL) ALL
phablet@ubuntu-phablet:~$

I added minutes to this phone and to my surprise it does make phone calls. Talked for about 2 minutes without dropping. Dialing seemed really slow. When the number is called it goes straight to voice mail. Not a surprise since it says on the pixel UT install sheet it doesn't work with VoLTE. I was able to access my VM and interact through the menus. Text and data have been working well for a week. Just thought Id share my findings if someone was looking for a provider here in the states.
Pixel 3A XL, UT 20.04 OTA4, provider is Tello Mobile with physical sim. Tello.com
Cheers!!